Toni Rajamäki

I build, automate, improve your systems

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Toni Rajamäki
Toni Rajamäki
Full Stack
Generative AI
Cloud & DevOps
UI/UX
4+
Years of experience
40+
Projects completed
4600+
Total commits
2017
Coding since
01 / WHO I AM

About me

I'm a full-stack engineer with an M.Sc. in Computer Science who likes building products, not just features. I understand the business side of software, care a lot about polished UX, and think like a founder: I started my first company in 2022.

My journey so far
  1. 2014First code
  2. 2022Founded GGG Ltd
  3. 202330+ projects
  4. CurrentApplied AI consultant
02 /TECHNICAL EXPERTISE

Skills & Technologies

The toolkit I reach for across the stack, from interface to data layer.

AILLM apps, agents and retrieval
OpenAI API
Anthropic Claude
LangChain
LangGraph
RAG
pgvector
MCP
03 /HOW I WORK WITH AI

The bottleneck isn't writing code anymore.

Agents build fast. Deciding what to build, and proving it works, still run at human speed. That is where I put my hours.

Before agents — every stage runs at human speed
Plan
Design
Build
Test
Deploy
Maintain
With agents — build runs at agent speed
Plan
Design
Build
Test
Deploy
Maintain
time reclaimed
where I focus now
04 /SELECTED WORK

Featured Projects

A selection of things I've built, from web apps to games.

Motorcycle Rental

Motorcycle Rental

Web App

A booking front-end for a motorcycle rental shop: browse the fleet, filter by model and pick up dates, and walk through a reservation flow.

ReactJavaScriptCSS
Nike Store

Nike Store

Web App

An e-commerce storefront for Nike products with a product grid, detail views and a client-side cart.

ReactJavaScriptCSS
Reflect

Reflect

Web App

A company site for Reflect: single-page marketing layout with scroll-driven sections and a contact form.

ReactJavaScriptCSS
Ninja Blog

Ninja Blog

Web App

A blog platform with post listings, detail pages and filtering, fetching content over a REST API with Axios.

ReactJavaScriptAxios
FUZU

FUZU

Mobile Game

A 3D mobile game built in Unity, from level design and physics to the mobile touch controls and release build.

C#Unity3D
Cyberpunk: Rogue Turret

Cyberpunk: Rogue Turret

Game

A rogue-like shooter in Unity with procedurally arranged runs, an upgrade loop and a neon cyberpunk art direction.

C#Unity3D
Juice Master

Juice Master

Mobile Game

A casual mobile game built in Unity, focused on tight game feel: responsive input, juicy feedback and short sessions.

C#Unity3D
Tetris++

Tetris++

Desktop Game

The classic game of Tetris with a twist, written from scratch in C++ with its own game loop and rendering.

C++Game LoopGUI
Pirkanmaa Domination

Pirkanmaa Domination

Desktop Game

A turn-based strategy game about conquering the Pirkanmaa region, built in C++ with a Qt GUI as a pair-programming project.

C++QtPair Programming